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Volvo VED12 Injector Problem

Discussion in 'Volvo Forum' started by curtislo, Nov 26, 2013.

Page 1 of 2
  1. Nov 26, 2013 #1
    curtislo

    curtislo Bobtail Member

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    Aug 14, 2013
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    Coming home the truck was running fine started to miss. pulled over code said number one injector electrical fault. With only about 100 miles to go i pushed on after about 20 miles it cleared up and ran fine. about 30 miles from home it really started running bad now it says injectors 1 ,2 and 3 electrical fault. code is MID 128 SID 1 FMI 5. and it feels like it is only running on 3 cylinders. Any suggestions? The shop close to me can't put it on computer right now and I need some help!!
     
    curtislo, Nov 26, 2013
    curtislo, Nov 26, 2013
    #1
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  3. Nov 26, 2013 #2
    Pablo-UA

    Pablo-UA Road Train Member

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    Borispol, Ukraine
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    usually bad wiring, sometimes ECU

    wires go bad under valve cover. I'd start there.

    Connections on engine go bad too

    sometimes one coil is short and it makes engine ECU disabel bank I.

    What year is engine? they used one coil ore two coil injectors (delphi). I can help with diagram
     
    Pablo-UA, Nov 26, 2013
    Pablo-UA, Nov 26, 2013
    #2
    curtislo Thanks this.
  4. Nov 26, 2013 #3
    curtislo

    curtislo Bobtail Member

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    It is a 2005. I pulled the valve cover and I don't see any wire problem yet but the number 1 injector has broken spring. Getting ready to pull dog box out and look at wire harness on back of motor .there is alot of oil on the harness.
     
    curtislo, Nov 26, 2013
    curtislo, Nov 26, 2013
    #3
  5. Nov 26, 2013 #4
    Pablo-UA

    Pablo-UA Road Train Member

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    check for oil leak in wiring harness
    check engine ECM connector A.

    Need a diagram?
     
    Pablo-UA, Nov 26, 2013
    Pablo-UA, Nov 26, 2013
    #4
    curtislo Thanks this.
  7. Nov 26, 2013 #5
    Pablo-UA

    Pablo-UA Road Train Member

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    Borispol, Ukraine
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    injectors are collected in banks. I- 1-2-3, II- 4-5-6

    So one common wire per bank
     
    Pablo-UA, Nov 26, 2013
    Pablo-UA, Nov 26, 2013
    #5
    curtislo Thanks this.
  8. Nov 26, 2013 #6
    curtislo

    curtislo Bobtail Member

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    yes Pablo that would be helpful. What should the voltage be on that common wire?
     
    curtislo, Nov 26, 2013
    curtislo, Nov 26, 2013
    #6
  9. Nov 26, 2013 #7
    curtislo

    curtislo Bobtail Member

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    Its a 4 prong Delphi i guess thats 2 coil?
     
    curtislo, Nov 26, 2013
    curtislo, Nov 26, 2013
    #7
  10. Nov 27, 2013 #8
    Pablo-UA

    Pablo-UA Road Train Member

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    yep, 2 coil

    voltage is about 80 V pulse so u cant check it with AVO meter
     
    Pablo-UA, Nov 27, 2013
    Pablo-UA, Nov 27, 2013
    #8
    curtislo Thanks this.
  11. Nov 28, 2013 #9
    seaswirl123

    seaswirl123 Bobtail Member

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    Nov 28, 2013
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    I have the same problem you fixed
     
    seaswirl123, Nov 28, 2013
    seaswirl123, Nov 28, 2013
    #9
  12. Nov 29, 2013 #10
    bowtieboy77

    bowtieboy77 Light Load Member

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    Aug 16, 2013
    Southern, Ontario
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    The oil in the harness I have ran into before. Volvos solution is to remove injector harness out of head clean the passthru plug real good and use a two part apoxy and fill the area of the passthru making sure to get the apoxy around all the wires. Install a new sealing o-ring and re install harness.
     
    bowtieboy77, Nov 29, 2013
    bowtieboy77, Nov 29, 2013
    #10
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